YouTube superstar Tyler Oakley knows that social media comments can be powerful.

“You may think that when you tweet – I’m probably preaching to the choir, y’all are angels I’m sure – but when you tweet to somebody … like, okay, say you tweet to Demi Lovato, God Bless her, but you tweet something shady, she might see that – and like I just said, she’s a human,” Oakley said during a panel at VidCon 2016 in Anaheim, California, on Thursday.

He continued: “So it doesn’t matter if that person’s an A-list celebrity, a YouTuber, a politician … whatever they might be, words have power.”

On Tuesday, Lovato, 23, announced that she was back on Instagram and Twitter, just one day after quitting social media.

“F— this.. I’m back bitches. And I’m coming back more honest than ever,”Lovato tweeted.

Fuck this.. I'm back bitches. And I'm coming back more honest than ever

Oakley, 27, went on to say that at one point he too, “used to not really care,” but now he tries “to be more positive.”

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“I’ll bite my tongue, sometimes I forget,” shared Oakley. “I try to put that [positive] energy out there. I think it’s easy to be shady. It’s cooler to be nice. You don’t have to be. That’s your own prerogative, but I’ll like you more if you’re nice.”